Jamdhar katari - a theory

[mahratt]

Originally Posted by Jim McDougall

Thank you for redirecting that, I overlooked it. So there we have the transverse grip c. 1860 which would likely precede Egerton's notes even if as early as 1860s-70s. It seems unlikely that Egerton would have had access to Russian notes or materials given the climate of relations in these times with Crimean War and its aftermath.
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Dear Jim, you will be surprised, but Egerton saw items of weapons with descriptions from Tsarskoe Selo. This information is in his book:
A Description of Indian and Oriental Armour: Illustrated from the Collection Formerly in the India Office, Now Exhibited at South Kensington, and the Author's Private Collection